A flash-flood watch is issued when heavy or excessive rainfall in a short period of time (generally less than 6 hours) could result in flash
flooding within the watch area. It does not mean that flooding will occur, but it is possible.
Throughout the morning about an inch of rainfall accumulation was recorded across southern and western parts of the island, due to a
trough system. A further 1 to 2 inches of rainfall are expected as the afternoon progresses.
Key Message: Residents and visitors should be prepared for the following:- Significant runoff from higher elevations. Significant soil
erosion is likely on exposed or scarred land surfaces. Large water settlements on roads and fields. Significant adjustments to water
levels of existing water bodies (ponds etc.). Significant delays on traffic routes with some roads possibly impassable. Large objects or
debris from higher elevations may also become embedded within fast moving water flows. Significant flooding at the foot of hillsides
and coastal roads is possible.